#include<stdio.h>

int main()

{
	printf("请输入name/major/Classs/age");
	const int name=1;
	const int major=2;
	const int Class=3;
	const int age=4;
	
	int type=0;
	
	scanf("%d",&type);
	
	switch(type){
		case 1:
			printf("蒋心琳\n");
			break;
			case 2:
				printf("信息\n");
				break;
				case 3:
					printf("2403\n");
					break;
					case 4:
						printf("18\n");
						break;
			
			
	}
	return 0;
} 